his product is a high-precision calculator for the processing of joints, maintaining a high technical content and accuracy Special multi-axis linkage design to make the joint more stable Airpressure swing period control system, can be independently buckling and stretching adjustment Load-bearing locking device to make the user's safety and stability when walking or standing higher Design of high steel extensible elasticity to increase joint movement smoothness and safety 145 O. Kneel angle to increase maximum knee activity demand
